Water-cooled valve for internal-combustion motors.



B. LOUTZKY. WATER GOOLBD VALVE FOR INTERNAL COMBUSTION MOTORS.

APPLICATION FILED NOV. 20, 1907.

E, E E

PATENTED 7, 1908.

UNITED srarns Paar orrtioi BORiS LoUTZKY, or BERLIN, GEBMANY..

' wArEaoomn VALVE eon INTEBNAL-CGMBUSTKEN store's-s.

Specification ofLettera Patent.

Patented. iiplll 7, 190a.

Application filed November 20, 1907,. Serial No. 188,067.

Zlolall whom it may concern:

Be it known thatI, BORIS LOUTZKY, of Berlin, Germany, a subject of the Emperor of Russia, and whose post-office address is No. 5 Unter den Linden, Berlin, Prussia, German Empire, have invented new and useful Improvements in WatenCooled Valves for Internal-Combustion Motors, of which the following. is a specification.

The invention relates to a water-cooled valve for internal combustion motors and especially for high power motors (200 II. P. and over) designed to run at high speeds. It is dillicult to obtain a perfect joint between such valves and their valve seats, especially when valves are used which with a small lift have a passage of large cross section and which are wholly or partially balanced. In

order to attain this object of a perfect joint with the valve seat in as complete a manner as possible the valve in accordance with the present invention comprises a hollow ring cooled by a current of'watcr'which is conducted through the guide stems of the valve and through the hollow "valve ring in such a manner that the cooling current circulates through the guide stems and the valve entering at one point and discharging at another point.

In the accompanying drawings, which form a part of this specification, Figure l is a longitudinal section on the line CD of Fig. 2, and Fig. 2 is a cross section on the line A-B of Fig. 1.

Referring lib Figs. 1 and 2, 1' is a hollow ring body forming the valve at (i and provided with ground joint faces meeting similar I faces on the valve-seat g.- The hollow ring 1* is guided by two hollow stems or spindles 7t and is which are fixed by means of nuts w to the ring-body r of the valve, and supported above by nuts '2; from a cross piece h. This cross piece is normally held up by the action of a spring f which tends to press the cross piece It and with it the stems orspindles 7 and it" together with the valve ring 1- upward, and force the valve against the joint faces (Z of the valve seat body 57. lVithin the ring bot y r thespindle it is provided with sideopening 8. The spindle 7c (partly broken away inig. 1) is connected with the. ringbody r and also provided with aside-opening Within the ring-body exactl in the same manner as the spindle is. T e spring f between the cross piece h and the valve seat mg it so as to disengage it from the cross headgand so may be easily mounted and dismounted.

In order to protect the ,valve seat body '9 from deformation by the varying tem eraturc it is fastened in the alve casing M at a above the passages 0, (see Fig. while a packing i forms an elastic stuffing box. around the lower portion of the seat body 5: so that it is able to expand downwards. Each of the hollow spindles 1 c "and Fr are provided with a nipple or connection a: and ac respectively to which the cooling water pipe may be fitted. The cooling water enters through the nipple w, traverses the spindle 3c and passing through the side opening 8, and into the hollow ring 1', is discharged at the other side through the side ooening of the spindle is, then through the latter and the discharge nipple a. The'valve seat body In ay be To.- vided with an opening q to which a coo ing water pi e can be fitted.

What claim, and desire to secure by Letters Patent of the United States, is i ,1. The combination of a valve seat body, an annular valve, two guide. stems therefor passing through the seat body, across piece connecting the outer ends of the guide stems and a spring confined between the cross piece and the seat body.

2. The combination of a valve seat body, an annular valve, two guide stems therefor passing through the seat body, a cross piece connecting the outer ends of the guide stems and a spring detachably mounted between the cross piece and the seat body.

. 3. A valve comprising a hollow ring, and. means for supplying a cooling fluid to the sing at one point and discharging it at an other, means comprising hollow guide spindles connected to the ring at dillerent points, together with a hollow seat Q said valve. provided with. an opening admission of a cooling can.

In testimony whereof I have hereunto set my hand in. presence of two suhsciihing Wit-'- nes lfi itnessesz HENRY Basses, WoLnnn'AR He ero body 9 may readily be removed by compress;- 

